Headlight for motor vehicles



April 23, 1929. 1 T DODDS HEADLIGHT FOR MOTOR VEHICLES Filed Sept. 28, 1927 INVENTOR W M,- h

Patented A r. 23,1929. 1 I 1,710,351

g U NITED STATES PATENT oFFIeE.

THOMAS Donns', or BANKSVILLE rownsnrr, ALLEGHENY COUNTY, PENNSYLVANIA,

ASSIGNOR OF ONE-HALF TO FRANK E. ADAMS, F DORMQNT, PENNSYLVANIA.

HEADLIGHT FOR MOTOR VEHICLES; I

Application filed September 28,1927. Serial No. 222,451.

To be satisfactory, the headlights must is provided'with a tongue 6 which is provided properly illuminate the road in front of the with a circular hole 7. and which is bent down vehicle but they must notcause'a glare in the vertically so as to be slipped over the socket 3, eyes'of drivers of vehicles approaching from the hole being of proper size so that the eX- the opposite direction. pansionof the socket by the insertion of the 55 The expediency of dimming ones he'adbulb willbindthe shield inposition. At the lights when about to pass another vehicle is front the shield is provided with a cut out objectionable since the sudden diminution of tongue Swhichis bent downwardly, and prefthe light is confusing, as the eyes accommoerably inclined slightly forwardly. The

10 date themselves slowlythereto especially in tongue 8 forms a shield which depends in 60 the ease of mature drivers or those having defront of the lamp filament and thus prevents fective eyesight. I the rays therefrom being directed directly The object which I have in view is the el1mforward. The surface of thejtongue 8 bemg inationof the glare without sacrificing roadof reflecting character throws the direct rays way illumination. rearwardly against the reflecting surface 52. 65

I accomplish this result by proi iding the It is obvious that the rays of light which headlight, in addition to theusual concaved would otherwise be reflected by the upper porreflecting surfacebelow and at the sides of the tion of the reflecting surface 2 will be relamp, a horizontal reflecting surface above flected downwardly by the under surface of the lamp and a shield to prevent the forward the shield 5 and will thus not be thrown'for- 70 projection of the rays from the lamp filawardly and upwardly as at present. Again lnent. the rays will not be thrown directly forward. The specific embodiment of myinvention from the lamp filament. Again the full reillustrated in the drawings .iscl1aracterized flective effect of the sides and bottom of the by the employment of a shield, preferably reflective surface 2 are utilized. 75 mounted on the lamp socket andfwhich pro- In using my shields in connection with vides a flat reflecting surfaeedisposedv in a standard headlights, I have found that the horizontal plane above the lamp and a downillumination .of the roadway is perfectbut wardly,and preferably outwardly inclined there was absolutely no glare in'the eyes of .7 7 shield in front of the lamp filament.

Referring to the drawings, Fig. 1 is a front drivers of approaching cars have dimmed elevation of the headlight; Fig. 2 is a vertical their lights, thinking that my headlights had section of the same ;.'Fig. 3 is a horizontal secbeen dimmed. tion of the same, and Fig. 4 is a plan view of My invention may be incorporated as an is formed. p are manufactured or my invention'may be Referring to the drawings, -1 is a oonvenreadilyand at trifling expense applied to tional type of head light casing having an inheadlights" already in use. V

terior concaved reflecting surface 2. 3 is the What I desire to claim is 40 lamp socket and 4- the electric bulb which is I As a new article of manufacture, a lamp 9 inserted therein. Itis now the general pra'cshield for automobile headlights formed from tice to employ an expandible socket into a flat piece of material having a body ofsegwhich the bulb is inserted. j mental'contour, the front edge of the body he 5 isa shield which may be a piece ofsheet ing straight and the remaining edge of the .15 metal having bright reflecting surface, such body being arcuate. to fitthe reflector of a 9.5

for instance as tin. The front edge of the lamp above andclosely adjacent the lamp shield 5 is straight while its rear and side is bulb, said platefu'rther having a tongue pro approaching. drivers. Indeed frequently o the sheet metal blank from which the shield improvement in headlights when thelatter 5 I provided with a continuous curved edge dejecting centrally from the arcuate side of the it signed tofit against the reflecting surface2as' body and provided with an opening to fit shown in Figs. 1 and 3. 'At'its rear the shield over a lamp socket, the tongue being bent at substantially right angles to the body, said plate further having a pair of slits extending inwardly from the front straight edge on opposite sides of the centercto define a second tongue, said second tongue being bent angulai'ly with respect to the body and extending from the body in the same general direcbeing iinpei'foi'ate throughout and forming an opaque shield closely adjacent the front 10 of the lamp bulb.

$igned at Pittsburgh, Pa, this 26th day i of Sept, 1927.

THOMAS DODDS. 

